
1
The
modulation
output
gives
a
TTL
level
signal
of
the
same
frequency
as
the
internal
modulating
signal.
The
modulation
input
allows
you
to
input
a
signal
to
modulate
the
power
of
the
optical
output.
The
analog
output
gives
a
dc-signal
proportional
to
the
output
power
.
The
relationship
between
this
voltage
level
and
the
output
power
is
not
calibrated,
but
is
approximately
1mV
for
each
1W
.
At
the
back
of
the
8168F
,
you
also
have
a
Remote
Interlock
Connector
.
This
is
to
protect
the
user
from
injury
.
If
the
short-circuit
at
this
BNC
connector
is
opened,
the
laser
is
switched
o
immediately
and
cannot
be
switched
on
until
it
is
closed
again.
Starting
the
8168F
When
you
turn
on
the
8168F
,
the
instrument
is
locked.
This
is
to
prevent
unauthorized
persons
from
using
this
Laser
Safety
Class
IIIb
instrument.
The
Starting
screen
for
the
8168F
is
shown
below:
Figure
1-2.
Starting
Screen
for
the
8168F
If
you
have
not
set
a
new
password,
you
also
see
the
message:
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
default
pwd:
8168,
please
change
it!
.
This
message
appears
in
the
\Secure"
screen
until
you
set
a
new
password
(see
\Secure
"
in
Chapter
3).
T
o
unlock
the
instrument,
press
NNNNNNNNNNNNNNNNNNNN
Unlock
.
Y
ou
see
the
following
screen:
Getting
Started
1-3
Summary of Contents for 8167A
Page 2: ......
Page 4: ......
Page 26: ......
Page 110: ......
Page 130: ......
Page 150: ......
Page 164: ...D Figure D 1 Test Setup for the Wavelength Tests D 4 Performance Tests ...
Page 177: ...D Figure D 5 Test Setup for the Source Spontaneous Emission Test Performance Tests D 17 ...
Page 240: ......